Automatic gas-operated firearm.



I. C. STURGEON.

AUTOMATIC GAS OPERATED FIREARM.

APPLICATION FILED DEC. 22. I9I6.

Patented J an. 7, 1919.

4 SHEETS-SHEET I.

Qvwemtoz J. C. STURGEON.

AUTOMATIC GAS OPERATED FIREARM.

APPLICATION FILED DEC.22. 1916. 1,290,849. Patented Jan. 7,1919.

4 SHEETSSHEET 2.

J. C. STURGEON.

AUTOMATIC GAS OPERATED FIREARM.

APPLICATION FILED DEC.22.1916.

Patented Jan. 7, 1919.

4 SHEETS-SHEET 3.

WM QdW 4 SHEETS-SHEET 4.

U I III IIIIIIL Patented Jan. 7, 1919.

J. C. STURGEON.

AUTOMATIC GAS OPERATED FIREARM.

APPLICATION FILED DEC.22I I916.

ED STTES PATENT OFFICE.

JOHN C. STUBGEON, OF ERIE, PENNSYLVANIA.

AUTOMATIC GAS-OPERATED FIREARM.

To all whom it may concern:

Be it known that I, JOHN C. STURGEON, a

citizen of the United States, residing at Erie, in the county of Erie and State of Pennsylvania, have invented certain new and useful Improvements in Automatic Gas- Operated Firearms; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will arms wherein a portion of the gases of eachdischarge operate to unlock, move back the breech-bolt mechanism, operate the cartridge feeding mechanism and compress a spring or springs which operate to close and lock the breech-bolt and release the firingpln.

One object of this invention is to construct and assemble the operative mechanism so that all parts of it are easily accessible to the operator, and, if necessary, can be quickly removed from and replaced in the frame of the arm.

Another object of this invention is to provide a supplemental piston connected with and operating the bolt-locking mechanism, which operates first to unlock the bolt and compress a retracting spring, and then continues moving in unison with the breech-bolt locking mechanism, until the mechanism 18 again locked for firing.

Another feature of this invention consists in cartridge-feeding mechanism, which positively feeds cartridges to the arm, and a cartridge supply device quickly attachable and removable, provided with a closure which is automatically opened as thesupply device is put in place on the arm.

Another object of this invention consists substantially in the structure of parts, their cooperation and combination in the structure as hereinafter described.

These and other features of this invention are hereinafter fully set forth and described Patented Jan. 7, 1919.

Applicatioufiled December 22, 1916. Serial No. 138,330.

and illustrated in the accompanying drawings in which Figure 1, is a side view in elevation of the rear portion of the arm.

Fig. 2, is a side elevation of the muzzle portion of the arm.

Fig. 3, is a cross section on the line A, in Fig. 1, looking in the direction of the arrow.

Fig. 4, is an end View of the muzzle portion of the arm.

Fig. 5, is a longitudinal vertical central section partially in elevation, showing the mechanism of the arm and its position when ready to fire.

Fig. 6, is a like longitudinal vertical section partially in elevation, showing the.

mechanism of the arm, and its position when reloading.

Fig. 7, is a longitudinal, horizontal section on the plane of the bore of the barrel with parts in elevation.

Fig. 8, is a transverse section on the line i B, in Fig. 5, looking in the direction of the arrow.

Fig. 9, is a vertical, longitudinal section of the muzzle end of the barrel and of the gas deflecting mechanism, on the line C, in

E, in Fig. 5, looking in the direction of the.

arrow.

Fig. 13, is a transverse section on the line F, in Fig. 5, looking in the direction of the grrcw, with the hmged side-plate turned Fig. 14, is a detail plan view partially in section, on the line G, in Fig. 13, looking in the direction of the arrow.

Fig. 15, is a transverse section on the line H, in Fig. 5, showing a section of the cartridge supply clip in place upon the arm, looking in the direction of the arrow.

Fig. 16, is a transverse section on the line I, in Fig. 5, looking in the direction of the arrow.

Fig. 17, is an end. view of the rotating locking-lug.

Fig. 18, is a side view of the same show- I ing the actuating cam therein.

the same.

In these drawings 1, indicates the butt; 2 the frame; 3 the barrel; and 44 the sideplates thereon; the side-plate 4 on the left side of the frame being screwed thereto, and the side-plate 4, on the right side of the frame is secured to the frame 2 by hinges 6, at its lower edge, and at its upper edge by rotatable hooks 5, whereby it can be released and turned back, as shown in Fig. 13, so that access can be had to the mechanism mounted in the frame.

In the side-plate 4 there is a slot 7 provided with a hinged cover 8, in which slot a cocking-lever 9 operates, as hereinafter described. The bottom portion 10, of the frame 2, is preferably made removable for convenience in the construction of the frame 2.

Removably mounted in the rear of the frame 2 there is a part 11-12, the lower part 11, of which supports the rear end of a spiral spring 13, and the upper part 12 supports the sear mechanism 14-15 (see Figs. 5, 6, 7 and 11) these parts 1112 are preferably integral and aresecured in the rear end of the frame 2, preferably by means of a removable transverse key 16, passing through a slot 17 in the frame.

- In'the upper art of the frame, in line with the bore 18, o the barrel 3, a reciprocating .bolt 19, is mounted, having centrally mounted therein a firing-pin 20, provided at its rear end with a notched head 21 adapted to the rear of the collar 24, passes through the end 26 of the locking-lug frame, the rotatable locking-lug 28 and the end 29 of the locking-lug frame, where it is secured by a screw threaded extension thereof, 30; the rear end of this extension having an inwardly projecting shoulder 31 which forms an abutment for the rear end of the spring 22. The rotating-lug 28 is provided with slots 3233 (see Fig. 19) adapted when the lug is rotated to the proper position, to embrace and move back over the locking bars 3435 secured to the inside of the frame 2.

The locking-lug 28 is rotated around the bolt 19 by means of a-lug 36 on the upper end of the reciprocating arm 37, (shown in dotted lines in Figs. 5-6 and 12,) which lug is moved forward and back by said arm in a diagonal -slot 38, in said rotatable lug 28 (see Figs. 5, 6, 12, 17, 18 and 19).

The arm 37 extends downward and is secured to a cylindrical part 39 which slides back and forth in the part 40, joining the lower ends of. the lockin -lug frame 2629, the upper ends thereof the semi-circular part 41 secured thereto. (See Fig. 12). Through the upper part of the arm 37 there is a ide-rod 42 which is secured in the ends 2 29 of the lockinglug frame and operates to prevent lateral movement of the upper end of the reciprocating arm 37.

Secured to the edges of the ends 2629 of ,the locking-lug frame are guides 43 (see Figs. 5, 6 and 12) adapted to engage and operate in longitudinal slots 44 in the sides of the frame 2.

Tq the outside of the lower end 29, of the locking-lug frame there is secured a hollow extension 45 which incloses a retracting spring 46 engaging the end of-the part 39 of the arm 37 and operates to move the part 39, and the arm 37, secured thereto toward the end 27 of the locking-lug frame, and bring the locking-lug 28 into locking position and actuate the automatically operating sear 14. To the opposite end of the part 39 there is secured a rod 47 which extends inside of a tube 48 secured to the end 27 of the lockinglug frame; the rod 47 and the tube 48 extending forward under the barrel 3 into a longitudinal cylinder 49, the rod 47 extending beyond the end of the tube 48 Where it is fitted witha piston 50, which piston, when the gases enter the cylinder from the bore 18 of the barrel 3, through the passage 5152, first moves into contact with the end of the tube 48, thereby moving the arm 37 toward the end 29 of the locking-lug frame, thereby rotating the locking lug 28, and unlocking the bolt 19, after which, under the continued pressure of the gases, the tube 48 and the rod-47 operate in unison, moving back the locking-lug frame, the locking-lug 28 and the bolt 19, against the retracting spring 13, which, when the gases escape, operates to move the parts back to their normal positions, ready for firing.

On the side of the arm 37 there is a hook stud 53 adapted to engage a hooked rod 54 (see Figs. 5, 6 and 12) which rod 54 extends ing connected by back to and is pivoted upon the arm 55 of a bell-crank lever 5556. This bell-crank lever engages the arm 57 of the sear 14 and operates when the locking-lug 28, is fully engaged with the locking-bars 34:35, to automatically disengage the sear 14 from the notch in the head 21 of the firing-pin.

The arm 56 of the bell-crank lever 5556, is also provided with a spring 58 for raising the arm 56 thereof out of contact with the sear arm 57 a spring 59 is also provided, which engages the sear arm 57, to insure the engagement of the sear with the firing-pin head 21. V

The sear 15 is provided with a downwardly projecting arm 60 (shown in dotted lines in Figs. and 6) adapted to be engaged by an arm 61 extending upward from the trigger 62, the trigger sliding back and forth in the frame and having a spiral retracting spring 63 engaging the rear thereof, to move it forward, as illustrated in Figs. 5 and 6; a spring 64 also contacts with the rear of the sear arm 60 (see Fig. 7 to insure the engagement of the sear 15 with the firingpin head 21. It is apparent that when the sear 15 is held out of engagement by pressure upon the trigger 62, the sear 14; will be operated automatically to release the firingpin 20.

The butt 1, of the gun, is pivoted on a pintle 65 in the lower part of the rear end of the frame, and is held in its normal position by a pin 66 passing through the rear of the frame and through an extension 67 on the butt 1, of the arm; so that by the removal of the pin 66, the butt 1 can be turned down as illustrated in dotted lines in Fig. 1, and then by removing the key 16 and turning back the side-plate 4, the mechanism of the arm can be removed through the rear end of the frame. A hand-grip 68 is also provided on the frame 2, to enable the operator to firmly hold the arm.

The cartridge feeding-mechanism consists substantially of a reciprocating arm 69, which is removably mounted on a sleeve 70, so as to rotate thereon, and through which sleeve the tube 48 travels forward and back ward. In this sleeve 70 there is a cam slot 71 which is engaged by a stud 72 on the tube 48. which operates as the tube moves back and forth to rotate the sleeve 70 on the tube; the sleeve 70 and the arm 69 being held from longitudinal movement by an arm 73 engaging annular grooves 74-7-l on one end thereof. (See Figs. 5, 6, 13 and 14.) The arm 73 also embraces one of the bearings of the arm.69.on the sleeve 70 so plate 4 is turned back, as shown in Fig. 13.

vice or clip 7 On the sleeve 70 there is a lug 75 adapted to engage the arm 69 and move it over against the retracting spring 76 into the position shown in Fig. 15, where it receives a fresh cartrid from the cartridge supply de- 7. The movement of the sleeve 70 in the opposite direction, then operates to move the lug 75 back out of the way, and the spring 76 then operates on the arm 69 and moves it and the cartridge thereon up against the side of the bolt 19; and when the bolt 19 is moved backward after firing, it extracts the empty shell engaged by the extractor 23 on the lower part thereof, and as soon as the bolt 19 has completed its backward movement, the spring 76 further acting on the arm 69, pushes the fresh cartridge in front of the bolt, and at the same time pushes the empty cartridge shell out through the slot 79 in the opposite side of the frame, asillustrated in Fig. 7. On the frame 2, at

each end of the cartridge inlet 80 therein,

there are uprights 8182 adapted to receive and support a clip of cartridges 77, and on the frame 2, between these uprights 81- 82 there is an upward projection 83.

The cartridge clip 77 (shown in Figs. 15, 21 and 22) is preferably. made of thin metal of suitable width and length to receive cartridges and allow them to move freely downward to.the out-let end 84 thereof, which, prior to its being put in place on the arm, is closed by a vertically sliding gate 85 having a laterally extending lip 86 (see Figs. 2122) which is adapted to engage the upper edge of the projection 83, and as the clip is moved down into place, raises the gate 85 so as to allow cartridges to pass out of the 5lower end of the clip as illustrated in Fi 1 5n each end of the lower part of the clip are flanged guides 87 adapted to engage and slide down on the uprights 8182 and re tain the clip in place on the arm; this clip is quickly removable when exhausted and replaced by a .full one. In the rear end of the clip 77 there is a vertical slot 88, through which the operator can see the rear ends of cartridges therein, and note the exhaustion 7 thereof.

For cooking the arm there is a stud 89 secured to the sideof the cylindrical part 39, of the arm 37, which stud projects outward through a slot 90 in the side of the part 40 of the locking-lug frame; the outer end of this stud 89 being adapted to be engaged by a lug 91 extending inward from the slide 92 on which the cooking lever 9 is mounted, as is clearly shown in Fig. 7. When it is desired to cock the arm, the cocking lever 9 is swung outward, and the cover 8 of the slot 7 is raised up; then on pulling the lever 9 toward the rear of the arm, the lug 91 thereon engages the stud 89, and first barrel 3, I preferably secure longitudinal corrugated radiating strips 93 of thin copper or aluminum, in dove-tail grooves 94, in the periphery of the barrel, as illustrated -in Fig. 8; and on the end of the barrel I preferably secure a collar 95 having arms 96 projecting longitudinally some distance be-' yond the end of'the barrel 3, and on these arms 96 I secure conical disks 97 which operate to deflect portions of the gases passing from the end of the barrel 3 outward; this feature being clearly illustrated in Figs. 4 and 9.

Inclosing the barrel, the corrugated radiating strips 89 and the conical disks 93 at the end of the barrel, there is a removable shell made in two sections 9899 preferably secured to the frame 2, and barrel 3, by studs 100101, and to the ends of thearms 96 supporting the disks 97 by studs 102. The rear end of this shell 9899 is open so that air passes freely'therein, and over the midi ating strips 93, and out at the front end thereof.

On the top of the rear of the frame 2 I secure a rear-sight support 103 in which there is pivoted the part 104 adapted to be secured in any position to which it may be rotated by the thumb screw 105, operating as a journal therefor. (See Figs. 1 and 20.) In the part 104 I mount the upright 106 at one side of the line of sight, and it can be rotated therein and secured in any desired position by means of the thumb screw 107.

On the upright 106 there is a clamp sleeve 108 on which a tubular part 109 is pivoted, which is adapted to be clamped in any desired position, to the upright 106 by the thumb screw 110. In a slot in this tubular part 109, a sight 111 is mounted, which is adapted to be moved in and out or toward the upright 106 by means of the thumb screw 112-passing through the shank of the sight 111. In this manner the sight 111 can be adjusted for elevation and windage with facility and ease as desired.

In operation a clip of cartridges 77 is put in place between the uprights 81-82 which operation opens the clip-gate 85 and permits the cartridges to pass down upon the cartridge carrying arm 69, as illustrated in Fig. 15. The arm is then cooked by means of the cocking lever 9, as hereinbefore described,

during which a cartridge is moved in front of thebolt 19 as illustrated in Fig. 7; the bolt is then moved forward by the spring 13, forcing the cartridge into the barrel as illustrated in Fig. 5, during which operation the firing-pin 20 which has engaged the sears 14-45 is drawn back in the bolt ready for firing, and when the bolt is fully home and the locking-lug 28 has been rotated so as to firmly lock the bolt 19, the completion of the locking operation disengages the automatically operated sear 14, then by pulling the trigger 62, the other sear 15 is released and the arm is fired; and so long as the sear 15 is held out of engagement, and the supply of cartridges in clip 77 lasts, the action of the parts will be automatically repeated;

proved automatic fire-arm so as to enable others skilled in the art to which this invention appertains, to construct and utihze the same. I do not, however, confine myself to the exact construction, form and arrangement of the parts thereof, as many of these can be modified and varied Without departing from the spirit of my invention.

Therefore what I claim as new and desire to secure by Letters Patent is 1. In a gun, a frame, a barrel secured thereto, a cylinder under the barrel, a gasopening from the barrel to the cylinder, a piston in the cylinder, breech-bolt locking mechanism, a rod connecting the bolt-locking mechanism with said piston, a tube around said rod extending from a frame carrying the bolt-locking mechanism into said cylinder, :1 retracting spring in said frame acting on the bolt-locking mechanism, and a spring acting on the frame of said bolt-locking mechanism.

2. In a gun, a frame, a barrel secured thereto, a reciprocating breech bolt carrying a firing-pin mounted therein, a boltlocking mechanism secured thereto, a rotatable locking-lug therein adapted to engage and be disengaged from lugs on the gun-frame, an arm engaging and operating said rotatable locking-lug, a cvlinder under the gun-barrel, a rod connecting said arm and a piston in said cylinder and a spring der under the barrel and adapted to be moved backward against said spring by gases in the cylinder.

4. In a gun, a frame, a barrel secured thereto, a cylinder under the barrel communicating with the bore thereof, a breech-bolt, -a locking-lug frame secured to said bolt, a rotatable locking-lug therein adapted to engage the gun-frame, a reciprocating arm in said locking-lug frame engaging a diagonal slotin said rotatable locking-lug, a spring in said frame engaging said arm, a rod extending from the front of said arm into said cylinder, and a piston on the end of said rod within said cylinder.

5. In a gmma frame, a barrel secured thereto, a cylinder under the barrel communicating at its front end with the bore of the barrel, a reciprocating breech-bolt to close the breech of the barrel, a locking-lug frame secured to said bolt, a locking-lug mounted in said locking-lug frame, a spring engaging the rear of said frame, a tube extendin from the front of said frame into the cylin er under the barrel, and adapted to be moved backward by the action of gases in said cylinder.

6.-In a 'gun, a frame, a barrel secured thereto, a non-rotatable reciprocating breechbolt mounted in said frame .to close the breech of the barrel, an extractor hook on the lower side of the front end thereof, a

bore thereof, a piston in said cylinder secured to a rod connected to said breech-bolt locking mechanism, a tube extending from the frame of the bolt-locking mechanism into said cylinder, the end of which is some dis tance from the rear end of the piston therein, so that the piston will travel some distance backward and then contact with the end of the tube, and the piston and tube will thereafter move backwardin unison.

9. In a gun, a frame, a barrel secured thereto, a reciprocating breech-bolt mounted in the frame, a cylinder under the barrel communicating with the bore thereof, a pier ton in said cylinder, a breech-bolt locking mechanism, a tubular rod extending from a locking-lug frame secured thereto and traveling therewith, a bolt locking mechanism mounted in said frame, gas actuated mechanism actuating said bolt-locking mechanism in one direction, and moving said frame rearwardly, a spring carried by said frame for actuating said locking mechanism in the opposite direction, and a spring acting on said locking-lug frame to move it forward.

11. In a gun, a frame, a barrel secured thereto, a reciprocating breech-bolt, a locking-lug frame secured thereon, a bolt-locking mechanism mounted therein, a cylinder under the barrel communicating with the bore thereof, a: tube on said locking-lug frame extending into said cylinder, a rod secured to the bolt-locking mechanism and extending through said tube into said cylinder, and apiston secured to the end of said rod at a. distance beyond the end of said tube equal to the travel of the locking-lug actuating mechanism in the locking-lug frame.

12. In a gun, a frame, a barrel secured thereto, a reclprocating breech-bolt, a springactuated firing-pin therein extending beyond the rear end of said bolt having a sear notch therein, sears adapted to engage said sear notch, a tri ger engaging one of said sears, a lockingug frame secured to said breech-bolt, a reciprocating locking-lug actuating mechanism mounted in said frame, a bell-crank lever, one arm of which engages the other sear, a forwardly extending rod, a hook on the end thereof, and astud in the reciprocating part of the bolt-locking mechanism engaging said, hook at the end of its forward traverse.

13. In a gun, a frame, a barrel secured thereto, a reciprocating breech-bolt, a locking-lug frame on said bolt, a bolt locking mechanism in said frame, a lateral lug extending therefrom, and a cocking lever mechanism mounted in the gun frame adapted to engage said lug for manually cooking the arm.

14. In a gun, a frame, a barrel secured thereto, a reciprocating bolt, a locking-lug frame secured to said bolt, a locking-lug and actuating mechanism therefor mounted in said frame, a stud projecting laterally from the locking-lug actuating mechanism, al'ocking-lever operating in a slot in the side of the gun frame, means thereon adapted to engage the stud on the locking-lug actuating mechanism for manually cocking the arm, and a cover for closing said slot.

15. In a gun, a frame having an opening in the rear end thereof, a part adapted .to slide in and out of said opening carrying the sear mechanism secured to the upper portion of said sliding section, and means for supporting a spiral spring in its lower section, and means for securing said sliding section in the rear end of the frame.

16. In a gun, a frame having an opening 7 through the rear end thereof, awmember sup porting the rear end of the retracting spring and sear mechanism filling said *opemng,

means. for removably securing said member in the rear of the frame, a reciprocating breech-bolt, a locking mechanism thereon, a

retracting spring engaging the rear of they bolt-locking mechanism, all removably mounted in and removable from the gunframe, through the opening in the rear end,

ward under the barrel, a sleeve mounted on said tubular rod, means for preventing longitudinal movement of said sleeve on said tube, a cam-slot in said sleeve, a stud on said tubular rod operating in said cam-slot as said rod reciprocates to rotate the sleeve on said rod, a cartridge carrying arm mounted and rotating on said sleeve, a lug on said sleeve adapted to engage said arm and move it in one direction, and a spring mounted in the frame and engaging said arm to move it inthe opposite directlon. I

'19. In a un, a frame, a barrel secured therein, a cy inder under the barrel, a breechbo1t,.a lockm -lug frame secured to said bolt, a spring at t e rear thereof, a tubular rod ex tending from the locking-lug frame into said cylinder, a sleeve mounted on said tubular rod, means for preventing the longitudinal movement of said sleeve, an oscillating cartridge carrying arm removably mounted on and adapted to rotate with and on said sleeve, a cam-slot in said sleeve, a studon said tubular rod operating in said cam-slot to rotate the sleeve on said tube, a

lug on said sleeve adapted to engage said arm and move it in one direction, and a spring mounted on the frame, and engaging said arm to move it in the opposite direction.

20. In a gun, a frame having a cartridge inlet at one side thereof, abreech-bolt mounted so as to reciprocate in said frame, a locking-lug frame secured. to said bolt, a spring behind the locking-lug frame to move it and the bolt forward, a rod secured to the opposite end of the locking-lug frame, means acting on said rod to move it and the locking-lug frame and bolt backward, a sleeve on said rod through which it recipro'-' cates, a lug on the frame engaging annular grooves in said sleeve to prevent longitudinal movement thereof, a longitudinal camslot in said sleeve, a stud in said reciprocating rod engaging said slot, a cartridge carrylng arm rotatably mounted on said sleeve, a lug on said sleeve adapted to engage said arm and move it in; one direction, and a spring in the frame engaging the opposite side of said arm to move it in the other direction.

21, In a gun, 'a frame, a barrel secured thereto, a cylinder under the barrel, a gas openin from the barrel to the c linder, a 'piston in the cylinder, a breech-b t, a locking-lug frame secured tothe breech-bolt and moving in unison therewith, Breech-bolt locking mechanism mounted in said frame, a rod connecting the breech-bolt locking mechanism with said iston, and a spring in said frame operatmg the bolt-locking mechanism in one direction.

22. In a gun, a gun-frame, a non-rotatable breech-bolt, a locking-lug frame secured thereto, a locking-lug mounted in said locking-lug frame, means on the locking-lug adapted to engage the gun-frame, and means for operating the locking-lug.

23. In a gun, a gunrame, a barrel secured thereto, a non-rotatable breech-bolt mounted and reciprocating in the gunframe, a locking-lug frame secured to the breech-bolt, a locking-lug mounted in the locking-lug frame,a cylinder under the barrel and communicating with the bore thereof, a piston in said cylinder and a rod connectin said piston with the locking-lug actuating mechanism:

24. In a gun, a gun-framehaving its rear end open, a removablemember for closing said opening, sear mechanism mounted on said removable member, means for securing said removable member in the gun-frame, a reciprocating breech-bolt, a locking-lug frame secured thereto and locking-lug mechanism mounted in said locking-lug frame,

all so mounted in the gun-frame as to be removable therefrom through the opening in the rear end thereof.

25. In a gun, a gun-frame having its rear end open, a removable member for closing said opening, a barrel secured to the front end of said gun-frame, a reciprocating breech-bolt, a locking-lug frame secured thereon, and a bolt-locking mechanism mounted in said locking-lug frame, all of which are removable through the opening in the rear end of the gun-frame, a cylinder under the barrel communicating with the bore thereof, a piston in said cylinder, a rod connecting said piston with and operatingthe bolt-locking mechanism to unlock it, and a spring in the locking lug frame-for operating the locking mechanism to lock the breech-bolt.

26. In a gun, a frame having a cartridge inlet opening'at one side thereof, vertical uprights 0n the frame at each end of said opening, and a laterally projecting ledge below said 0 ening adapted to receive and support the ower end of a removable cartridge clip in position to deliver cartridges therefrom into said opening,- a vertical ledge on the frame adapted to engage and open a closure onrthe lower part of the cartridge clip as it is being inserted into said supports, and a cartridge carrying lever operating in said opening to carry cartridges from the discharge end of the clip.

27. A cartridge clip consisting substantially of a hollow metal shell having a sight slit in one end thereof and adapted to hold cartridges so that they will move freely therein, a slidable gate for closing the lower end of the shell, and out-turned ledges on the lower end thereof adapted to engage supports on' a gun-frame.

In testimony whereof I aflix my signature.

v JOHN G. STURGEON. 

